Drinking cup and method of making the same



Dec. 27, 1927.

J. V. WECKBAUGH DRINKING CUP AND METHOD 0F MAKING THE SAME Filed Sept.16, 1925 TOR ckbcm um MMM ATTORNEYS Joseph V'LV/ BY @L N 1,654,490PATENT FFlcgEl.

JQSEPH V. WECKBAUGH, F NEW YORK, N. Y., ASSIGNOR T0 AMERICAN CUPTOR 60B-rona'rion, or Nnw Yonk, n. Y.,

A CORPORATION 0F DELAWARE.

DRm'KING CUP AND METHOD 0F MAKING' TEE SAME.

Application led September 16, 1925. Serial No. 56,633.

'Ihe present invention relates to drinking cups of the type in which ablank in the form of a parallelogram is bent about a diagonal and hasthe two edges, which are thus brought together, united by being foldedover and then held in place by a metal strip. A cup of this general typeis shown in my earlier Patent No. 1,421,114, issued June 27th, i922.

In that earlier patent I pointed out that it is desirable to use a metalstrip perforated along its median line. I still utilize such a strip,but I find that the perforations can be made to serve an additionalfunction not pointed out in the earlierv patent. If the metal is simplybent into V shape and then clamped about the folded edges of the paper auseful cup is formed but it will be found to be somewhat fragile, as thepaper may pull out of lthe metal under the strain of the liquidcontents. For this reason it is desirable to lock the metal in place,particularly if the metal used is soft enough to be applied readily. Ihave now found that the use of a metal Strip having relatively largeperforations which are arranged quite close together, lends itself to ahighly efficient method of locking the metal in place.

In the accompanying drawings I show niy present invention applied to acup of the4 same general type as illustrated in my said earlier patent.In these drawings Figfl is a perspective of the cup; Fig. 2 is anenlarged detail of the seam; Fig. 3 is a section on line 3-3 of Fig. 2;and Fig. 4: shows a modification, the view being similar to that shownin Fig. 3. l

After the two edges of the yblank 2 are brought together and folded overas shown at 3, the metal binding strip 4, in which are perforations 5,is bent along its median line (that is through vthe center of theperforations 5) and compressed about the folded edges. After this isdone the portions of the metal which lie between the perforations willappear as bands running around the edge of the cup. Such-bands areindicated at 6 in Fig. 2. I have found that the metal strip can besecurely locked in place if certain of these bands, together. with theportions of the paper which they embrace, are distorted or pushedV outof their general plane. In the illustrative example I have shown a.minor proportion of the bands dis-` torted as indicated at 7, and thishas been found to be sufficient for a cup of good strength.

In Figs. 3 and 4 I show two'ways in which the bands and the paper can bedistorted. In Fig. 3 the edge of the paper and the metal band arecompressed so that they bulge out to form a T-shaped cross section.lrlhis may be done by holding the inner edges of the metal strip at bothsides and 'then pressing the free edge with a fiat instrument. Mechanismf or forming this seal mechanically is shown in my copending applicationSerial .No 55,596, filed September 10, 1925.

In Fig. a the bands 6 and the folded edges 3 are locked together bypushing the bands and papar over sideways. rIhis may be done in anydesired manner, or can be done niechanically by using apparatus similarto that shown in my Patent No. 1,574,324, dated February 23, 1926, whichwas co-pending with the present case.

In either case it may be noted that the paper is .distorted in a waythat must involve some internal strains, which, however, are ofinsignificant magnitude and demand but little force. rIhe metal on theother hand, which would be more difficult to distort in this way, issimply bent, for the perforations allow the intermediate bands somefreedom forations, together with the embraced pav per, being distortedout of their plane to lock the metal'in place.

2. A structure as defined in claim 1, in which the distorted portions ofthe metal and paper are formed to give a T-shape'l cross section.

3. The method of sealing togetherl the edges of adrinking cup or thelike, which comprises the steps'of folding over the two edges which areto be united, clampin about such folded edges a metal strip per oratedalong its median line and bent along the line of such perforations, andsealing such strip 5. A method asldefined in claim 3, in which in placeby distorting certain of the portions the distortion is effected byholdin the inof the metal which lie between the perforaner edges of themetal on both si es While 10 tions together with the embraced paper.pressing the portions to be distorted against 4. A method as defined inclaim 3, in which a surface.

the metal and the paper are distorted in such e manner as to form aT-shaped cross section. JOSEPH V. WECKBAUGH.

